Improvement in hoisting-apparatus



.I'QHN n. MARSHALL ANDZJAcoB W. scHRoEIIER, or BALTIMORE, MARY` LAND.

VVLetters Patent 79,138, dated June 23, 1868.

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To ALL WHoM IT MAT confinati@ I Be it known that Ive, JOHN E .VVMVItsHALL andJCOB- W. SCHROEDER, of Baltimore, in the county 'oi"Baltimore,`and.in 4the State of Maryland, have invented new and useful Improvements in Hoisting-Apparatus; and

do hereby declare that the following isa-full, clear, and exactdeserip'tion thereof', reference being made to thc l 'accompanying drawings, and to the letters of reference marked thereon.

`In lthe annexed dravvings, forming part Aof this specification,

Figure 1represents a. fr'ofnt view, of the"hoisting-apparatus, and

Figure 2 a side view of the saruef.-` l

4. represents a. section of a building, inwhichtlie machineis placed. yB is the frame, for the borse-power. C is a. spool, to receive and deliver the ropes a a,\vhich run through tlie grooved pulleys i to the cranes E E, which cranes are secured bythe braces F F.' At the end of the-ropesa a are buckets G G, for conveying material. e c are bevelled pinions, which are connected with clutches I1, and run loose on shaitdl. e is a bevelled gear, secured to shaft f, and working in pinions c c, xvhenvthe lever D, at theitop of shaft f, iswturncd. gg are clutches, connected together by the bar m, and fitting on'a feathelin shaftid, having lateral motion thereon. 7L is a brake, with handle 7c to regulate the motion of the spool C.v

The operation is as follows A Y Y The machine being secured in position, either outside the building, in the cellar, or on a licor of' tbe building, a horse is attached to lever D, which is long enough to allow him to move in a circle around thermacbine.,` Snicient rope is'rigged to allovthe buckets G to be in position, one at thertop and lthe other atthebase of" the building, connecting with the spool 0, and passingunder and over the grooved rollers 'jin the cranes E E.

The 4bucket being filled and the machine started, the clutches g g are thrown in gear, causing the shaft d to revolve with the spool C, winding the ropeand carrying the vbucket to the top ofthe building o n one crane, and at the same time unwinding and lowering the empty bucket from thc other crane. Upon the buckets arriving 'at the top, the clutch is thrown out of gear, and` the brakef't applied until the full bucket is emptied and the empty one at the base lled, when ythe clutch gg is again thrown ilu gear, but ou theA oppositeside, causing the Sliaft and spool Cto revolve in the,opposite'direction, bywhich means the full bucket is elevated' and the empty one lowered, as before. l i

B y this arrangement the machine may be kept in constant operation without any change in the direction of the motive-power, and is applicable to steam as well-as horse-power.

l Having thus fully described our inventiomtvhat We claim as new,`a nd desire to secure by Letters Patent, is- Y 1. The revolving cranes EE, in connection with the roue a and spool ,0, arranged and operating substantially asv and for the purposes'albove set forth. i

' 2. The combination ofthe bevelled gearv e, be\velled pinions c c, clutches gg and b b, spool` C, with brake h revolving onthe shaft d, and the rope a, revolving cranes E'E, braces F F, and buckets G G; arranged and' operating substantially as and for the purposes above set forth. I

Iutesti-mony thatwe-claimthe-foregoing, weh'nv'e hereunto set our. hands, this 13th day of April, 1868.

l JOHN E. MARSHALL,

JACOB W. SCHROEDER. 

